head to head · open source
mitosis vs Ethora
mitosis has 14,400 GitHub stars, 672 forks, 176 open issues and last shipped 2 months ago. Ethora has 546 stars, 111 forks, 2 open issues and last shipped 3 days ago. mitosis leads on adoption by 2,537% (14,400 vs 546 stars). mitosis is written in TypeScript under MIT; Ethora is written in JavaScript under Apache-2.0. mitosis has attracted 5% as many forks as stars, Ethora 20%. Ethora was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| mitosis | Ethora | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 546 |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | JavaScript |
| Last push | 2026-07-21 | 2026-09-18 |
| Forks | ⑂ 672 | ⑂ 111 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick mitosis if
- You weight community size — 14K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Ethora if
- You want the Ethora feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and Ethora fits your workflow better
About mitosis
Mitosis is an open source compiler that lets developers write UI components once in a single codebase and compile them to React, Vue, Angular, Svelte, Solid, Alpine, Qwik, and more. It is a TypeScript project under the MIT license, maintained in the BuilderIO organization, with the repository carrying roughly 14,384 stars and 671 forks across six years of history. The project lives in the JavaScript and TypeScript component ecosystem, and its documentation, playground, and Figma integration are hosted at mitosis.builder.io.
read the full mitosis overview →
About Ethora
Ethora is an Apache 2.0 licensed chat, AI and messaging SDK monorepo that adds real time messaging, prebuilt chat UI, bots and backend services to web, iOS and Android applications, and it is aimed at product teams that would rather integrate a messaging layer than assemble one.
read the full Ethora overview →
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Frequently asked questions
Is mitosis or Ethora more popular?
mitosis has 14,400 GitHub stars and Ethora has 546. mitosis has the larger community by that measure.
Are mitosis and Ethora free?
Both are open source. mitosis is licensed under MIT and Ethora under Apache-2.0. Neither carries a licence fee.
What is the difference between mitosis and Ethora?
mitosis is written in TypeScript and Ethora in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, mitosis or Ethora?
Choose mitosis if you want the larger community (14,400 stars) or its MIT licence terms. Choose Ethora if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.